Friction draft-gear.



G. Q. LEWIS. iFRlCTloN 'DRAFT GEAR.

'APPLICATION FILED JULY 13.19l6.

@JIL r. NN N .QNRN EN its.

GOGJRCH Q. LEWIS, F VHEATGN, .'LLINOIS, ASSIGNOR T0 VILLIAM H. MINER, 0F

CHAZY, NEW' YORK.

FRIGTIGN DRAFT-GEAR.

Specification of Letters Patent.

Patented Sept. 1U, MMS.

To all lw/iom t may concern:

lic it known that l, (loonnnii Q. Lewis, a citizen of the United States, residing at ll'heaton, in the county of Dupage andI State of illinois, have invented a certain new and useful Improvement in Friet-ion Draft-Gears, of which the following is a full, clear, concise, and exact description, reference being' had to the accompanying drawings, forming a part of this speeification.

This invention relates to improvements in friction draft gears.

T he object of the invention is to provide a friction draft gear for railway cars, of simple arrangement, composed of few parts, and wherein the fri'tion gear may be readily inserted and removed.

The invention furthermore consists in the improvements in the parts and devices and in the novel combinations ofthe pai-ts and devices hereinshown, described and claimed.

in the drawing forming a part ofthis specification, Figure 1 is a longitudinal, vertical section of a draft rigging embodying my invention. Fig. 2 is a horizontal, longitudinal sect-ion taken on the line 2-2 of Fig. l. Fig. 3 is .a transverse, vertical sect-ion taken substantially on the line 3 3 of Fig. l. And Fig. l is a perspective view of the improved friction cylinder employed in iny arrangement. l

lin the drawingr formingv a part of this specification, llll0 denote channel center sills between whichis mounted and secured thereto a rear abutment block or stop 11. The draw bar i2 is operatively connected to the friction gear, hereinafter described, by a horizontal yoke 13 and coupler key 14, the yoke i3 abutting at its rear end, said sto) ll and adapted to remain stationary in bu lt-fioiinted within the yoke is the friction mechanism designated generally by the reference A. The friction mechanism A, as shown, comprises a casting having' a rectangular spring cage portion 15 and friction cylinder 1G. `Where the cage and cylin`\ der eoalesce at the top, the casting is provided with a transverse, npstanding flange 17 forming a shoulder whit-,his arranged to engage a horizontal, transversely extendingnpper stop casting 1.8, the latter being riveted or otherwise suitably secured to the top flanges of the center sills, as indicated in Fig. 3. Said flange 17 is suitably rein- `forced by tapering anges 19-19. f The stop casting 18 is provided at its rear with a vertical flange 20 which is also 'suitably reinforced by tapering flanges 2l. At its rear, and near the bottom thereof, the friction shell and spring cage casting is provided Witli laterally extended shoulders 22-22 suitably .reinforced by tapered flanges 23. The shoulders Q2 engage and cooperate with a pair of stop castings 2l secured to the lower portions ofthe center sills. Each of said stop castings 24 coinprises a vertical, rea-r stop wall 25, vertical flange 26v secured against the vertical web of the center sill, and ahorizontal fiange 27 fitting againstr and secured tothe underside of the lower fiange of the center sill. Each stop Q4 is further provided with an upper horizontal flange 2S which forms a guide and support for the yoke 13. -The friction gear is held in operative position by means of two tie plates 2.9-) detaehably secured to the lower flanges of the sills.

In draft, it is apparent that the friction shell is prevented from forward movement due to the coperating three sets of stops and shoulders. The wedge and .friction shoes, however, are actuated by the l1orizon tal yoke through the rear follower. In buff, the yoke and follower are held stationary against the abutmentblock 1l, thus.

preventing rearward movement of the wedge. The friction shell A moves rearwardly in unison with the draw `bar, thus actuating the friction mechanism, as will be understood.

From the preceding description, it Will be seen. that the strains are transferred, under draft, to the sills at widely distributed points, to an upper horizontal stop, and to two vertical side stops. Furthermore by the arrangement provided, it is possible to insert and remove the friction shell while the draw bar and yoke are in place, thus facilitating repairs when the car is on the road. V

I claim:

lfln a draft rigging, the combination with sills, of an upper horizontal stop secured thereto, side stops secured to the inner faces of the sills, and a friction shell ,having shoulders eoperable with said stops.

2. l'n a draft rigging, the combination with sills, of an upper stop extending,- horizontally between and. secured to said sills,

havin@ shoulders conerable with said sto s said Stops and shoulders being so arranged as to prevent forward movement of the friction shell. l

4. In a draft rigging, tbe combination with sills, of a rea j aliuitment block mounted between and secured to sind sills, a plurality of stops secured to said sills, a Yfriction Shell-lmving shoulders colferable with said stops Wlgiereby the shell is prevented from forward movement, and a liorixontal yoke, Saul shell beingr removable from below.

5. n a draft rigging, the voinbinationI with sills, of a' rear abutn'ient block mounted between andseeured to said silla. a liorizontal yoke, a plurality of @tope secured to eaiil sills, a friction shell having ehoulderh` eooperable with said stops, Said shell being in- Sertible and removable from belo'ar while said yoke is in position.

lin a (lral't rlgging, the rmnbinaliion with sills, ol" a rear abutment block nioun atl between and secured to said sills, an lippen, horizontally extending stop, side storm euretl to the inner faces of said Sille 'new` the bottom thereof, a horizontal yoke, and a, friction slxell mounted between the arms of said )voltil and having top and side sboulflere eoperable with said stops.

7. AS an artiele of manu faeture, a friction :spring easing; being of :substantially reetangular formation, .said shell and owing li'avingg an upper, trau. \ersely extending shoullle f amil vertifially extending slioulll on opposllte sides l'liereo'l' near tbe bolitoin, Said sboulderey being roperable with {fo-r respomlingvly lorateil .elop members,

ln witness that l claim tbe loregjo-in; .llave hereunto Sulisrrilualmy naine tlm l lay ol July, lille.

(lllllllllll Q. lililllllfgi.

Wit messes (loLnxr, A. llisnor, Ra F. llenen.

, ianufaeture, a eom- -fr' bined friction Shell and Sn'ino Cassine lille 

